Adtran 4305 설치 설명서
Unit Installation
NetVanta 4305 Hardware Installation Guide
44
Copyright © 2006 ADTRAN, Inc.
61200890L1-34H
Supplying Power to the Unit
As shipped, each NetVanta 4305 is set to factory default conditions. After installing the base unit and any
option modules, the NetVanta 4305 is ready for power-up. To power the unit, ensure that the unit is
properly connected to an appropriate power source (as outlined in the sections below).
option modules, the NetVanta 4305 is ready for power-up. To power the unit, ensure that the unit is
properly connected to an appropriate power source (as outlined in the sections below).
NetVanta 4305 (AC)
The AC-powered NetVanta 4305 comes equipped with an auto-sensing 100 to 250 VAC, 50/60 Hz power
supply. The maximum power consumption is 75 watts. A grounded, three-plug detachable cable is
included with the shipment.
supply. The maximum power consumption is 75 watts. A grounded, three-plug detachable cable is
included with the shipment.
NetVanta 4305 (DC)
The DC-powered NetVanta 4305 connects to a centralized DC power source via the four-position power
connector on the rear of the chassis (see Figure 3 on page 23). The nominal input of the NetVanta 4305 is
+24 VDC or -48 VDC. Power and ground connections require copper conductors and a ring lug.
connector on the rear of the chassis (see Figure 3 on page 23). The nominal input of the NetVanta 4305 is
+24 VDC or -48 VDC. Power and ground connections require copper conductors and a ring lug.
•
Install unit in accordance with Article 400 and 364.8 of NEC NFPA 70.
•
Maximum recommended ambient operating temperature is 50
°
C.
Instructions for Connecting DC Power Source to the NetVanta 4305
Step
Action
1
With the power disconnected, connect the primary power source to input A of the power connector.
2
Connect a ground wire (fitted with a loop terminal end) to the grounding point using the screw
provided. Connect the other end of the ground wire to a protective earth ground.
provided. Connect the other end of the ground wire to a protective earth ground.
3
If using a backup power source, connect it to input B of the power connector.
•
Power to the NetVanta 4305 DC System must be from a reliably grounded 24 or 48 VDC.
•
Use only copper conductors when making power connections.
•
Install unit in accordance with the requirements of NEC NFPA 70.
•
The branch circuit overcurrent protection shall be a fuse or circuit breaker rated
minimum 48 VDC, maximum 10 A.
•
A readily accessible disconnect device, that is suitably approved and rated, shall be
incorporated in the field wiring.
•
Maximum recommended ambient operating temperature is 50
°
C.
The 10/100BaseT and Gigabit-Ethernet interfaces MUST NOT be metallically connected to
interfaces which connect to the Outside Plant or its wiring. These interfaces are designed
for use as intra-building interfaces only. The addition of primary protectors is not sufficient
protection in order to connect this interface metallically to OSP wiring.
To comply with GR-1089-CORE, Issue 3, this equipment MUST only be installed in a
DC-C (common) bonding and grounding environment. It may not be utilized in a DC-I
(isolated) bonding and grounding environment.